Thanks Lorenz for your test. I'd like to know much RAM you had available for this test. Fuseki+HDT has always been fast for me as well, except this query. I have 8GB.
What I did was *almost* exactly what you did. > * Have you ever tried to use CURL instead of the GUI? Yes, only I used a POST instead of a GET > * Have you tried any other query in the GUI with any other small HDT dataset? It might also be some issue within the GUI + HDT Yes, I've used other datasets before. BTW other queries on Wikidata return quickly, except this one. > * Do you use the built-in Fuseki of the HDT package which in fact is Fuseki1? I use Fuseki 3.5.0 (standalone server, no service) Basically I did what you did, with one difference: I didn't setup the HDT as ja:defaultGraph, but as ja:namedGraph. This seems to make all the difference in the world! In fact, I've tried to replicate your test, thus using ja:defaultGraph, and it seems to works as expected (it returned quickly)!!! If I setup a ja:namedGraph instead, my computer explodes! Can you re-try with a named graph? The query is the same, except that you add "FROM <http://example.org/wikidata>". Other than this, the only difference is that you probably have more RAM than me.
